123111033023 has 16 divisors (see below), whose sum is σ = 135561855744. Its totient is φ = 110873396160.

The previous prime is 123111033013. The next prime is 123111033037. The reversal of 123111033023 is 320330111321.

It is a cyclic number.

It is not a de Polignac number, because 123111033023 - 2¹⁸ = 123110770879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123111032986 and 123111033004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123111033013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650036 + ... + 817782.

It is an arithmetic number, because the mean of its divisors is an integer number (8472615984).

Almost surely, 2^123111033023 is an apocalyptic number.

123111033023 is a deficient number, since it is larger than the sum of its proper divisors (12450822721).

123111033023 is a wasteful number, since it uses less digits than its factorization.

123111033023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168382.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123111033023 its reverse (320330111321), we get a palindrome (443441144344).

The spelling of 123111033023 in words is "one hundred twenty-three billion, one hundred eleven million, thirty-three thousand, twenty-three".